Delayed cooling type annular gravity casting mold

Abstract

The utility model relates to the technical field of pouring molds, in particular to a delayed cooling type annular gravity pouring mold which comprises a bottom plate, the output end of a water pump is fixedly communicated with a left water inlet pipe through a corrugated pipe, and a cooling box is arranged above an adjusting mechanism. According to the delayed cooling type annular gravity casting mold, through cooperation of the adjusting mechanism and the cooling box, the mold is in an inclined state through the adjusting mechanism, a metal solution can enter the mold along the inclined angle when being poured, then the metal solution is prevented from turning over, and therefore air holes generated in a produced casting piece are reduced; through cooperation of the cooling mechanism and the water pump, cooling water is cooled in the water bucket through the cooling mechanism, and then the water pump conveys the cooling water into the cooling box to continue to cool the mold; and it is guaranteed that the temperature of cooling water is in a low state, the cooling speed of the mold can be increased, and therefore the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, specifically a delayed-cooling annular gravity casting mold. Background Technology

[0002] Casting molds are mainly used for casting metal materials, especially aluminum, copper, iron, steel and other metals. Casting molds are also known as casting molds and are suitable for producing castings of aluminum alloys, bronze, copper, brass, iron, steel and alloy steel.

[0003] For example, a delayed-cooling annular gravity casting mold with announcement number "CN215090501U" allows the cooling water inlet holes of the lower module of the casting mold body to sink into the cooling water tank. Cooling water is poured into the cooling water inlet holes, enabling rapid and uniform cooling of the casting tank. This avoids the situation where the heat from the first pour of the casting is not yet dissipated, and also prevents a large number of porosity holes from appearing on the bottom perimeter of the casting. However, this delayed-cooling annular gravity casting mold, when vertically pouring molten metal, can cause the liquid to churn directly into the mold, resulting in porosity in the finished mold and reducing production quality. Furthermore, the cooling water temperature increases upon contact with the mold, slowing down the cooling rate of the next mold and requiring longer waiting times, thus reducing work efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problems of the delayed-cooling annular gravity casting mold, which, when vertically pouring molten metal, causes the liquid to churn directly into the mold, resulting in air holes in the finished mold and reducing production quality. Furthermore, in this delayed-cooling annular gravity casting mold, the cooling water temperature increases upon contact with the mold, slowing down the cooling rate of the next mold and requiring longer waiting times, thus reducing work efficiency. Therefore, this invention proposes a delayed-cooling annular gravity casting mold.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a delayed-cooling annular gravity casting mold, including a base plate, a first outer shell fixedly connected to the upper end of the base plate, an adjustment mechanism inside the first outer shell, a water tank fixedly connected to the left side of the base plate, a second outer shell fixedly connected to the lower end of the outer wall of the water tank, a cooling mechanism inside the second outer shell, a water pump installed on the left side of the water tank, the output end of the water pump being fixedly connected to the left water inlet pipe through a corrugated pipe, and a cooling box above the adjustment mechanism.

[0007] Preferably, the inner wall of the curved plate machined at the upper end of the cooling box is slidably connected to the slide plate, and springs are sleeved on both sides of the slide plate, with the cooling box and the slide plate respectively fixedly connected to the two ends of the springs.

[0008] Preferably, the adjusting mechanism includes a hydraulic cylinder, the output end of which is fixedly connected to a connecting block, the outer wall of which is movably connected to a connecting rod via a pin, the left end of which is rotatably connected to a central protrusion of a rotating plate via a pin, the left end of which is rotatably connected to two support plates via a pin, and the lower ends of the two support plates are fixedly connected to the first outer shell.

[0009] Preferably, the right end of the hydraulic cylinder is fixedly connected to the base plate, and a cooling box is fixedly connected to the upper end of the rotating plate.

[0010] Preferably, a lower mold is bolted to the upper end of the slide plate, an upper mold is mounted to the upper end of the lower mold, and a riser is mounted to the upper end of the upper mold.

[0011] Preferably, the cooling mechanism includes a motor, the output shaft of which is fixedly connected to a rotating rod, the end of which is fixedly connected to a cylinder, the outer wall of which is slidably connected to a sliding frame, the inner walls at both ends of which are slidably connected to straight rods machined into the second housing, a rack fixedly connected to the left side of the outer wall at the end of the sliding frame, the outer wall of which meshes with a gear, and the rotating shaft of the gear is rotatably connected to the second housing through a bearing.

[0012] Preferably, the rotating shaft of the gear is fixedly connected to a stirring rod, and the outer wall of the motor is fixedly connected to the second outer casing.

[0013] Preferably, the upper two sides of the cooling box are fixedly connected to the water inlet pipe, the lower left side of the cooling box is fixedly connected to the water outlet pipe, and the inner wall of the water bucket is rotatably connected to the stirring rod through a sealed bearing.

[0014] The present invention proposes a delayed-cooling annular gravity casting mold, the advantages of which are as follows: Through the cooperation of the adjustment mechanism and the cooling box, the output end of the hydraulic cylinder extends and drives the connecting block to move to the left. The leftward movement of the connecting block drives the connecting rod to move. The connecting rod moves around the pin of the connecting block as the rotation center, thereby driving the rotating plate to move. The end pins of the rotating plate and the support plate move upward as the rotation center, thereby driving the cooling box, the upper mold and the lower mold to move. After the upper mold and the lower mold rotate a certain angle, the hydraulic cylinder is closed to maintain a certain angle. Then, the operator pours the molten metal solution into the upper mold along the inner wall of the feed port. The molten metal solution flows downward along the inner wall of the upper mold and the lower mold, which reduces turbulence and thus reduces the generation of air holes, thereby improving product quality. By adjusting the mechanism to make the mold tilted, the molten metal solution will enter the mold along the tilt angle when poured, which can reduce the turbulence of the molten metal solution and reduce the generation of air holes in the cast parts, thereby improving product quality.

[0015] Through the coordination of the cooling mechanism and the water pump, the output shaft of the motor rotates, driving the rotating rod to rotate. The rotating rod then drives the cylinder to rotate. The cylinder rotates around the rotating rod's axis of rotation, thus driving the sliding frame to move. The sliding frame's movement drives the rack to move. The sliding frame is limited to horizontal movement by a straight rod machined in the second outer shell. The rack's movement drives the gear to rotate. The gear's rotation drives the stirring rod to rotate. The stirring rod's rotation causes the water in the bucket to move continuously, thus achieving cooling. The water pump draws water from the bucket and delivers it to the cooling box through the left inlet pipe, achieving cooling of the cooling water. The cooling mechanism cools the cooling water in the bucket, and then the Rongguang water pump delivers the cooling water back to the cooling box to continue cooling the mold. Ensuring that the cooling water temperature is at a low level can improve the cooling speed of the mold and thus improve production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 A front sectional view;

[0018] Figure 3 for Figure 1 Top sectional view of the cooling mechanism;

[0019] Figure 4 This is a top sectional view of the lower mold;

[0020] Figure 5 for Figure 2 Schematic diagram of Part B in the middle section;

[0021] Figure 6 for Figure 2 Schematic diagram of part A in the middle.

[0022] In the diagram: 1. Base plate, 2. Adjustment mechanism, 201. Hydraulic cylinder, 202. Connecting block, 203. Connecting rod, 204. Rotating plate, 205. Support plate, 3. First outer shell, 4. Cooling box, 5. Water inlet pipe, 6. Cooling mechanism, 601. Motor, 602. Rotating rod, 603. Cylinder, 604. Sliding frame, 605. Rack, 606. Gear, 7. Second outer shell, 8. Water outlet pipe, 9. Water bucket, 10. Stirring rod, 11. Water pump, 12. Upper mold, 13. Lower mold, 14. Riser, 15. Slide plate, 16. Spring. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] See attached document Figure 1-6 :

[0025] In this embodiment, a delayed-cooling annular gravity casting mold includes a base plate 1, a first outer shell 3 fixedly connected to the upper end of the base plate 1, an adjustment mechanism 2 provided inside the first outer shell 3, a water tank 9 fixedly connected to the left side of the base plate 1, a second outer shell 7 fixedly connected to the lower end of the outer wall of the water tank 9, a cooling mechanism 6 provided inside the second outer shell 7, a water pump 11 installed on the left side of the water tank 9, the output end of the water pump 11 being fixedly connected to the left water inlet pipe 5 through a corrugated pipe, the water pump 11 being started can draw water out of the water tank 9 and deliver it into the water inlet pipe 5 and into the cooling box 4, the cooling box 4 is provided above the adjustment mechanism 2, and the inner wall of the curved plate processed at the upper end of the cooling box 4 is slidably connected to the sliding plate 15;

[0026] The cooling box 4 limits the vertical movement of the sliding plate 15. Springs 16 are fitted on both sides of the sliding plate 15. The movement of the sliding plate 15 drives the movement of the springs 16. The cooling box 4 and the sliding plate 15 are fixedly connected to both ends of the springs 16, respectively. A lower mold 13 is bolted to the upper end of the sliding plate 15. The elastic force of the springs 16 is approximately equal to the weight of the upper mold 12 and the lower mold 13. The upper mold 12 is mounted on the upper end of the lower mold 13. A riser 14 is mounted on the upper end of the upper mold 14. The main functions of the riser 14 include feeding, venting, and slag collection. To prevent defects such as shrinkage cavities and porosity, a feed port is machined on the upper part of the upper mold 12 for feeding. Both sides of the upper end of the cooling box 4 are fixedly connected to the water inlet pipe 5, and the lower left side of the cooling box 4 is fixedly connected to the water outlet pipe 8. Due to the slope of the inner wall of the cooling box 4, the water outlet pipe 8 can discharge water to the top of the water bucket 9. The cooling water will also be cooled as it falls from the air. The inner wall of the water bucket 9 is rotatably connected to the stirring rod 10 through a sealed bearing. The sealed bearing prevents water leakage. Both water inlet pipes 5 and water outlet pipe 8 are equipped with valves.

[0027] See attached document Figure 1-2 :

[0028] Adjustment mechanism 2 includes a hydraulic cylinder 201. A connecting block 202 is fixedly connected to the output end of the hydraulic cylinder 201. The extension and retraction of the output end of the hydraulic cylinder 201 causes the connecting block 202 to move. The outer wall of the connecting block 202 is movably connected to a connecting rod 203 via a pin. The movement of the connecting block 202 causes the connecting rod 203 to move. The connecting rod 203 moves around the pin on the connecting block 202 as its rotation center. The left end of the connecting rod 203 is rotatably connected to the central protrusion of the rotating plate 204 via a pin. 03 The movement drives the rotating plate 204 to move. The rotating plate 204 rotates around the left end pin as the rotation center. The left end of the rotating plate 204 is rotatably connected to two support plates 205 through the pin. The support plates 205 provide support. The lower ends of the two support plates 205 are fixedly connected to the first outer shell 3. The right end of the rotating plate 204 fits against the protrusion of the first outer shell 3. The first outer shell 3 provides support. The right end of the hydraulic cylinder 201 is fixedly connected to the base plate 1. The upper end of the rotating plate 204 is fixedly connected to the cooling box 4.

[0029] See attached document Figure 1-3 And 6:

[0030] The cooling mechanism 6 includes a motor 601. A rotating rod 602 is fixedly connected to the output shaft of the motor 601. Rotation of the output shaft of the motor 601 drives the rotating rod 602 to rotate. A cylinder 603 is fixedly connected to the end of the rotating rod 602. Rotation of the rotating rod 602 drives the cylinder 603 to rotate around the rotation center of the rotating rod 602. The outer wall of the cylinder 603 is slidably connected to a sliding frame 604. Rotation of the cylinder 603 drives the sliding frame 604 to move. The inner walls at both ends of the sliding frame 604 are slidably connected to straight rods machined into the second outer shell 7. The second outer shell 7 limits the movement of the sliding frame 604. A rack 605 is fixedly connected to the left side of the outer wall of the end of 604. The movement of the slide frame 604 drives the rack 605 to move. The outer wall of the rack 605 meshes with the gear 606. The movement of the rack 605 drives the gear 606 to rotate. The rotating shaft of the gear 606 is rotatably connected to the second housing 7 through a bearing. The rotating shaft of the gear 606 is fixedly connected to a stirring rod 10. The rotation of the gear 606 drives the stirring rod 10 to rotate. The rotation of the stirring rod 10 drives the water in the water tank 9 to move and come into contact with the air, thereby cooling it down. The outer wall of the motor 601 is fixedly connected to the second housing 7.

[0031] Working principle:

[0032] When producing castings using a delayed-cooling annular gravity casting mold.

[0033] Preparation:

[0034] The workers assembled the upper mold 12 and the lower mold 13 together (e.g.) Figure 1 The groove between the upper mold 12 and the lower mold 13 is annular, which can produce annular casting workpieces (such as...). Figure 4Then, the lower mold 13 is installed on the slide plate 15 by bolts, and then cooling water is transported into the cooling box 4 through the water inlet pipe 5 on the right side of the cooling box 4, and then the valve is closed.

[0035] Feeding process:

[0036] Start hydraulic cylinder 201 (e.g.) Figure 2 The output end of hydraulic cylinder 201 extends, causing connecting block 202 to move to the left. The leftward movement of connecting block 202 causes connecting rod 203 to move. Connecting rod 203 rotates around the pin of connecting block 202, thereby causing rotating plate 204 to move. Rotating plate 204 and support plate 205 move upwards around their end pins, thereby causing cooling box 4, upper mold 12, and lower mold 13 to move. After the upper mold 12 and lower mold 13 rotate a certain angle, hydraulic cylinder 201 is closed to maintain a certain angle. The workers then pour the molten metal solution into the upper mold 12 at an angle along the inner wall of the feed port. The molten metal solution flows downward along the inner walls of the upper mold 12 and the lower mold 13, which reduces turbulence and thus reduces the generation of air holes, thereby improving product quality. After a large portion is poured in, the output end of the hydraulic cylinder 201 is restarted and retracted. The retraction of the output end of the hydraulic cylinder 201 works on the opposite principle to the above, which resets the rotating plate 204. Then, the molten metal solution is poured in until the interior of the upper mold 12 and the lower mold 13 are filled.

[0037] As molten metal is continuously poured into the mold, the weight of the mold increases, causing the slide plate 15 to slide into the cooling box 4. This allows the mold to slowly enter the cooling box 4 and stretch the spring 16, so that the lower mold 13 contacts the cooling water first for cooling. Then, most of the mold is cooled in the cooling box 4, thus achieving the purpose of delayed cooling by cooling the lower part first and then the upper part. The riser 14 can prevent shrinkage, venting, slag collection and prevent defects such as shrinkage cavities and porosity in the casting mold.

[0038] Cooling process:

[0039] After the mold has cooled down (e.g.) Figure 2 The staff opens the valve on the outlet pipe 8, and cooling water flows from the cold cutting box 4 through the outlet pipe 8 into the water tank 9. The cooling water is cooled once after contacting the air in the air, and then falls into the water tank. Then the motor 601 is started (e.g. Figure 3The output shaft of motor 601 rotates, causing the rotating rod 602 to rotate. The rotating rod 602 rotates, causing the cylinder 603 to rotate. The cylinder 603 rotates around the rotation axis of the rotating rod 602, thereby driving the sliding frame 604 to move. The movement of the sliding frame 604 drives the rack 605 to move. The sliding frame 604 is limited to horizontal movement by the straight rod machined in the second outer shell 7. The movement of the rack 605 drives the gear 606 to rotate. The rotation of the gear 606 drives the stirring rod 10 to rotate (e.g., ...). Figure 6 The rotation of the stirring rod 10 causes the water in the bucket 9 to move continuously, thereby achieving the purpose of cooling.

[0040] The rotating rod 602 continuously rotates, driving the cylinder 603 to move continuously, which in turn drives the sliding frame 604 to reciprocate. The reciprocating motion of the sliding frame 604 drives the rack 605 to reciprocate, which in turn causes the gear 606 to rotate, causing the stirring rod 10 to rotate. This makes the stirring rod 10 drive the cooling water in the water tank 9 to move more widely and cool down faster. When the worker removes the cooled mold, the sliding plate 15 returns to its original position due to the spring 16 (e.g., Figure 5 After disassembling the mold, the workers separate the upper mold 12 and the lower mold 13, and take out the cast parts that have been cast. Then, they reinstall the next mold. The workers then start the water pump 11 to pump the water out of the water tank 9 and send it into the cooling tank 4 through the left water inlet pipe 5. This cools the water and facilitates the cooling of the mold for the next time, thus saving the workers' time. The above operation can be repeated to continuously produce casting molds. After all the molds are completed, all power can be turned off.

[0041] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A delayed-cooling annular gravity casting mold comprising a base plate (1), characterized in that: The upper end of the bottom plate (1) is fixedly connected with a first shell (3), the inside of the first shell (3) is provided with an adjusting mechanism (2), the left side of the bottom plate (1) is fixedly connected with a water bucket (9), the lower end of the outer wall of the water bucket (9) is fixedly connected with a second shell (7), the inside of the second shell (7) is provided with a cooling mechanism (6), the left side of the water bucket (9) is provided with a water pump (11), the output end of the water pump (11) is fixedly communicated with the left side water inlet pipe (5) through a corrugated pipe, and the upper side of the adjusting mechanism (2) is provided with a cooling box (4).

2. The delayed-cooling annular gravity die casting mold according to claim 1, characterized by: The inner walls of the bent plates processed on the upper end of the cooling box (4) are all slidably connected with sliding plates (15), the two sides of each sliding plate (15) is sleeved with a spring (16), and the two ends of each spring (16) is fixedly connected with the cooling box (4) and the sliding plate (15) respectively.

3. The delayed-cooling annular gravity die casting mold according to claim 1, characterized by: The adjusting mechanism (2) comprises a hydraulic cylinder (201), the output end of the hydraulic cylinder (201) is fixedly connected with a connecting block (202), the outer wall of the connecting block (202) is movably connected with a connecting rod (203) through a pin shaft, the left end of the connecting rod (203) is rotatably connected with the middle part of a rotating plate (204) through a pin shaft, the left end of the rotating plate (204) is rotatably connected with two supporting plates (205) through pin shafts, and the lower ends of the two supporting plates (205) are fixedly connected with the first shell (3).

4. The delayed-cooling annular gravity die casting mold according to claim 3, characterized by: The right end of the hydraulic cylinder (201) is fixedly connected with the bottom plate (1), and the upper end of the rotating plate (204) is fixedly connected with the cooling box (4).

5. The delayed-cooling annular gravity die of claim 2, wherein: The upper end of the sliding plate (15) is provided with a lower mold (13) through bolts, the upper end of the lower mold (13) is provided with an upper mold (12), and the upper end of the upper mold (12) is provided with a riser (14).

6. The delayed-cooling annular gravity die of claim 1, wherein: The cooling mechanism (6) comprises a motor (601), the output shaft of the motor (601) is fixedly connected with a rotating rod (602), the end of the rotating rod (602) is fixedly connected with a cylinder (603), the outer wall of the cylinder (603) is slidably connected with a sliding frame (604), the inner walls of the two ends of the sliding frame (604) are slidably connected with straight rods processed on the second shell (7), the outer wall of the end of the sliding frame (604) is fixedly connected with a rack (605) on the left side, the outer wall of the rack (605) is meshed with a gear (606), and the rotating shaft of the gear (606) is rotatably connected with the second shell (7) through a bearing.

7. The delayed-cooling annular gravity die of claim 6, wherein: The rotating shaft of the gear (606) is fixedly connected with a stirring rod (10), and the outer wall of the motor (601) is fixedly connected with the second shell (7).

8. The delayed-cooling annular gravity die of claim 1, wherein: The two sides of the upper end of the cooling box (4) are fixedly communicated with the water inlet pipe (5), the left side of the lower end of the cooling box (4) is fixedly communicated with the water outlet pipe (8), and the inner wall of the water bucket (9) is rotatably connected with the stirring rod (10) through a sealing bearing.

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